diff --git a/include/llvm/Frontend/OpenMP/OMP.td b/include/llvm/Frontend/OpenMP/OMP.td
index 3a93dd73ede..6f16cfe730b 100644
--- a/include/llvm/Frontend/OpenMP/OMP.td
+++ b/include/llvm/Frontend/OpenMP/OMP.td
@@ -34,6 +34,7 @@ def OpenMP : DirectiveLanguage {
 
 def OMPC_Allocator : Clause<"allocator"> {
   let clangClass = "OMPAllocatorClause";
+  let flangClassValue = "ScalarIntExpr";
 }
 def OMPC_If : Clause<"if"> {
   let clangClass = "OMPIfClause";